Finding the Fourth Proportional to 13,306,089.30, 19,959,133.95 and 7,259,471.70
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Solution
The fourth proportional to 13,306,089.30, 19,959,133.95 and 7,259,471.70 is: 10,889,207.55
Step by Step Solution
- Step 1: Write the proportion equation
13,306,089.30 : 19,959,133.95 = 7,259,471.70 : x - Step 2: Convert to fraction form
13,306,089.30/19,959,133.95 = 7,259,471.70/x - Step 3: Cross multiply
13,306,089.30x = 19,959,133.95 × 7,259,471.70 - Step 4: Simplify right side
13,306,089.30x = 144,892,768,066,534.22 - Step 5: Solve for x
x = 144,892,768,066,534.22/13,306,089.30 - Step 6: Final answer
x = 10,889,207.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.